Anthraquinone compounds

ABSTRACT

ANTHRAQUINONE COMPOUNDS OF THE FORMULA,   1-(H2N-),4-(HO-),CL-,(((R)N-PHENYL)-Z-),(X)M-ANTHRAQUINONE   WHEREIN Z IS OXYGEN OR SULFUR, X IS HYDROGEN OR A HALOGEN, R IS HYDROGEN ATOM OR AGROUP WHICH DOES NOT IMPART SOLUBILITY IN WATER, AND M AND N EACH SIGNIFY AN INTEGER OF 1 TO 4, WHICH ARE USEFUL FOR DYEING SYNTHETIC ARTICLES BRILLIANT RED WITH FASTNESS, AND ARE USEFUL AS INTERMEDIATES FOR THE PRODUCTION OF ANTHRAQUINONE DISPERSE DYES, AND WHICH MAY BE PREPARED BY REACTING AN ANTHRAQUINONE DERIVATIVE REPRESENTED BY THE FORMULA,   1-(H2N-),4-(HO-),(((R)N-PHENYL)-Z-),(X)M-ANTHRAQUINONE   WHEREIN R, X, Z, M MDAND N ARE AS DEFINED ABOVE, WITH A CHLORINATING AGENT IN THE PRESENCE OF A NON-PROTONIC POLAR SOLVENT OF AN AMIDE TYPE.

United States Patent ANTHRAQUINONE COMPOUNDS Eiji Yamada, Ibaragi, Japan, assignor to Sumitomo Chemical Company, Limited, Osaka, Japan No Drawing. Filed May 11, 1971, Ser. No. 142,339

Claims priority, application Japan, May 16, 1970, 45/41,788; June 27, 1970, 45/56,:306 l Int. Cl. C09b l/50 US. Cl. 260-380 14 Claims ABSTRACT OF THE DISCLOSURE Anthraquinone compounds of the formula,

wherein Z is oxygen or sulfur, X is hydrogen or a halogen, R is hydrogen atom or a group which does not impart solubility in water, and m and n each signify an integer of 1 to 4, which are useful for dyeing synthetic articles brilliant red with good fastness, and are useful as intermediates for the production of anthraquinone disperse dyes, and which may be prepared by reacting an anthraquinone derivative represented by the formula,

9 r A M a), 2

wherein R, X, Z, m and n are as defined above, with a chlorinating agent in the presence of a non-protonic polar solvent of an amide type.

This invention relates to novel anthraquinone compounds which are useful for dyeing synthetic articles, particularly syntheticfibrous and shaped articles made from polyesters, acetylc llulose, polyester ethers, polyurethanes or polyamides, and are useful as intermediates for the production of other anthraquinone dyes, a novel process for preparing the same and a process for dyeing said materials with the same.

The invention affords a novel anthraquinone compound represented by the formula,

NH; I ll wherein Z is oxygen or sulfur atom, X is hydrogen or a halogen atom, R is hydrogen atom or a group which does not impart solubility in water, and m and n each signify I 3,836,549 Patented Sept. 17, 1974 p CC O BIIHQ H l 0 0H (II) wherein R, X, Z, m and n are as defined above, with a chlorinating agent in a non-protonic polar solvent of an amide type.

As a result of extensive investigation on the halogenation of the anthraquinone derivative of the formula (II), the present inventor has found that solvents have a re- 7 markable effect on the halogenation. 'It is known to react an integer of. 1 to 4, and a process for producing the anthraquinone compound of the formula (I), which comprises reacting an anthraquinone derivative represented bv the formula,

the derivative of the formula II) with a halogenating agent in sulfuric acid, whereby the para-position of the benzene ring A as mentioned below is preferentially subjected to halogenation and successively the ortho-position thereof is subjected to halogenation,

chlorine gas in sulturi acid at 50 C.

On the other hand, it has been surprisingly found the anthraquinone nucleus is selectively halogenated in the presence of a non-protonic polar solvent of an amide type instead of sulfuric acid, as follows,

tion, alkyl means an alkyl having 1 to 5 carbon atoms.

1 The formula (II) representing an anthraquinone derivative which is a starting material in the present process --s 01115 -O s CH3 is replaced by the following formula,

0H, NH I! I 5 (3H3 c v 0 0H --OC3H4CN 0'CzH4C0OCH and examples of the group represented by Y are as follows:

0 -0,H.0000,H5 -0- Q s Q E -o-@oo2m -o-ooH,--c1

. o-o 0 CH -0--0 s 03:11. 01 Y 0 (1g (1 E E -o o E I o I P I H 9 Q o l l O [D I EQQ S OH: Y

earn-s o20- 01 CH3 -o-s 03 0112011 ()COCH:

OCO

COO-

1-Amino-3-phenoxyor phenylmercapto-4-hydroxyanthraquinones, which are isomers of the above-mentioned l-amino-Z-phenoxyor phenylmercapto-4-hydroxyanthraquinones, and which are represented by the formulas,

O NH:

r O s YAHQ & )H

wherein R and n are as defined above, may be also em-- ployed as the starting material. Further, there may be also employed the following anthraquinone derivatives which are substituted by a halogen in 5-, -6-, 7- or 8-position of the anthraquinone nucleus,

a r 01 A (Rn I Q Cl O OH (H) ITIHZ n Q 1 u I O OH t a C1 II wherein R and n are as defined above.

It is preferable to use sulfuryl chloride or chlorine gas as the chlorinating agent.

Preferable examples of the non-protonic polar solvent of an amide type include dimethylformamide, dimethylacetamide, N-methylpyrrolidone, diethylformamide and a mixture thereof. It is not always necessary to use the solvent mentioned above by itself, and the reaction may be' conducted in a mixed solvent consisting of said solvent and such a neutral solvent inactive to chlorine as nitrobenzene, chlorobenzene, xylene, nitrotoluene and the like. In the present process, it is very important to use said amide type solvent. In case where other organic solvents such as pyridine, dimethyl sulfoxide, chlorobenzene, nitrobenzene and the like are used instead of said amide type solvent, no halogenation proceeds or remarkable side reaction occurs to fail to give the objective compounds.

In carrying out the present process, a small excess amount of the chlorinating agent is added dropwise or introduced gradually to the anthraquinone derivative of the formula (II) in the presence of said solvent at a temperature of 0 to C. It is preferable to commence the introduction of the chlorinating agent at room temperature or below and to gradually introduce the chlorinating agent, because the reaction is exothermic. Although the reaction time depends on the kind of the starting anthraquinone derivative, particularly depends on the kind of The present invention will be illustrated in more detail with reference to the following examples, which are, of course, not intended to limit the scope of the present invention. Parts and percent are by weight.

substituent R in the formula (II), the reaction may be EXAMPLE a completed within hours when the reaction is conducted Into mlXtul'e 33 Parts of dImeIhYIfOYmamIdF and at a temperature of 25 to 30 C. The chlorinating agent Parts of 'P Q Y' y Y aqllmonee may be used in an amount of one to five mols per mol of Parts of sulfury1 Qhlorlde Was addefl dl'opwlse f the anthraquinone derivative of the formula (II). In case 10 about 2 hours with surfing at Duflng the dTOPYVIsB where it is diflicult to complete the reaction, a relatively addition 0f sulflllyl chloride, the mp f Was F large amount of the chlorinating agent may be u ed, Th to 28 to 30 C. because of exothermic reaction. The m xreaction mixture, after the reaction is over, may be postture was stirred for about one hour g Q P treated according to the conventional procedure in the addition, and after disappearance 0f the starting material production of conventional disperse dyes, whereby the was Confirmed accofdmg t0 the film layer chromatog- Objective compound may b recovered raphy, a mixture of 16.5 parts of methanol and 16.5 parts The present compound of the formula (I) thus bof water was added gradually to the reactlon mixture. mi d may be used not l fo dyfiing Synthetic fib The mixture was filtered to separate crystals, which were or shaped articles but also as an intermediate for the pro- Washed With methanol and Water, and dfled, whereby a duction of other anthraquinone dyes. The present com- 20 novel y having the formula, pound of the formula (I) or a mixture thereof is suitable for dyeing synthetic fabrics, particularly polyester fabrics 0 such as polyethylene terephthalate, cellulose triacetate and l] I the like, and cellulose ester fabrics according to dip dye- 0@ ing, printing or thermosol dyeing procedures. The present compounds may be useful for dyeing above-mentioned ar- C1 ticles deeper tint with more excellent fastnesses, particu- I I larly fastness to washing after a resin-finishing, compared A OH with thosedyed with the anthraquinone derivative of the formula (II) or the above-mentioned compound in which n o the benzene ring A is substituted by chlorine. to 211 C.

In dyeing the fabrics, the present compound is dispersed was obtflmedin water using a suitable dispersing agent such as a con- Chlonm content: calcdi Found: 953%- densate of naphthalenesulfonic acid and formaldehyde. According to same y as mslltioned shove except The polyester f b i may be dyed according to a high 35 that 33 parts of dimethylacetamide or a mixture of 30 temperature dyeing method at to 0., a carrier Parts of nirrobenzcne and parts of dimethylformd i method at 100 C or a thermosol dyeing method amide was used instead of dimethylformamide, the same at to 210 C., and the acetylcellulose and polyamide y as mentioned above was Obtainedfabrics may be dyed at 80 to 100 C., or these fabrics The thus Obtainfid y y be useful for dyeing P may be printed with a paste containing th present co 40 ester fabrics brilliant bluish red with good fastness to pound dispersed, and the printed matter may be heatg sublimation and Washingtreated, whereby a dyed fabric with excellent fastness may be obtained. Further, the present compound may be use- EXAMPLES 2-8 ful as a colorant for so-called dopedyeing, and for color- According to a similar manner to that of Example 1, ing various kinds of synthetic resin. 45 the following results were obtained.

Dye obtained Chlorine Chlorinating content Starting anthraqulnone Solvent and agent and caled/ Ex. derivative and amount amount thereof amount M.P. (percent) No. thereof (part) (part) thereof (part) Formula f 0.) found 2 1-amino-2-p-ch1or0phenoxy-4- Dimethylform- Sulfuryl 215-217 17. 7/174 hydroxyanthraquinone amide (20). chloride (M.P.: 204 to 205 0.) 5.0). (2.44).

3 1-amin0-2-(3'-methylphenoxy)- Dimethylform- Sulfuryl -188 9. 34/9. 80

thydroxyanthraquinone amide (27.6). chloride (6.9). (3.7).

4 1amin0-2-( -aeetoxwphenoxy)- Dimethylform- Sulfuryl 225-227 4-hydroxyanthraquin0ne amide (23.3). (7 .77)

Chlorine Ohlorinating content Starting anthraquinone Solvent and agent and ealed/ Ex. derivative and amount amount thereof amount M.P. (percent) N0. thereoi (part) (part) thereof (part) Formula C) found 14"-.. l-mnino2-phenoxy-4-hydroxy- Dimethylform- Chlorine gas NHg 210-211 9. 70/9. 63

anthraquinone (6.6). amide (33). was mtro- H l duced until A disap- 0 pearance of thetstgrting 01 me aria was observed. 8

1amino-2-(4-methylphenoxy)- Dimethyliorm- Suliuryl O NH; 205-207 4; 4-hydroxyanthraquin0ne (5). amide qzgzgaride H I 4 According to the manner similar to those in above 6--.- Y 131mm re mentioned Examples, the following novel compounds were obtained. -0- -c1 Y in the following formula,

? lIIHe 27--.- Do.

01 0 o H 0N Shade on 2 4 Ex. I polyester No. 0 OH fabrics 29 O H Do.

H 1 Bluish red. C2 400002 5 0 CH 7 I CH3 2.-

17-.-- cm -o- Do.

l 32...- Do.

7 D I v E 0 33--.. Do.

' O- CH2 0CH3 34- Do. CH: 0 O

0 C1 D0 36---. CH5 D0. 2

-0 OCH:

A CHZN 01 22 c 0 O-CaHu (t) 39"" -O C 0- 24-. D0.

--0- -SCH -0-- S OzCgHn (n) 25--.; Do.

O- SCHa Shade on polyester Ex.No. Formula ofthe dye fabrics Bluish red Ha Reddish violet; m W -Q l l O OH 86 11TH: Bluish red.

WI 01 y Q I I 0 OH 87 r; 0 NH: Do

Shade on polyester Ex. No. Formula 01 the dye fabrics 88 III-H2 Blulsh red.

W or

I l 0H 89....-. 0 IYIH: Do.

90 ITIHQ Do.

I 01 Y I 91 fl) $112 Do.

Cl W OH 92 (I? IIIH: Do. o 0 o 0 GHQ 01 CH3 Yam 93 f IIIH: DOM

l 0G0 C'HzCHzOCHa I O H 94 i) I|-IH1 D0:

w oQ-o omomornom 95 (RH NHz Do;

EXAMPLE 96 65 hot water, successively reduction-washed and dried, where- A mixture of 4 parts of the compound obtained in by a yarn dyed in a brilliant bluish red shade was obtained. Example 1 6 parts of Sodium dinaphthylmethane disul The yarn was superior in fastnesses to llght, sublimation fonate and parts of water was ground in a ball mill for 24 hours to obtain a colloidal liquid, which was sprayand washing.

EXAMPLE 97 dried, whereby 10 parts of a dyeing agent was obtained. 70 According to a similar manner to that of Example 96,

Into 1000 parts of Water, 1 part of the dyeing agent and parts of polyester spun yarn (Trademark: Tetoron) were added, and the dye bath was heated gradually. The dyeing was conducted at 130 C. for min- 4 parts of the compound obtained in Example 2 was treated to obtain 10 parts of a dyeing agent.

Into 1,000 parts of water, 1 part of the dyeing agent, 4 parts of a methylnaphthalene type carrier and 20 parts utes under a pressure. The dyed product was washed with of polyester spun yarn were added respectively. The dye- Into 1,000 parts of water, 15 parts of the compound obtained in Example 3 was dispersed by use of a suitable amount of a dispersing agent, and thereafter polyester cloth was dipped therein. The cloth was squeezed up to 60% of pick up and was dried uniformly by a hot air drier. The pre-dried cloth was treated at 200 C. for 90 minutes by use of a heat-treating machine for thermosol, and thereafter was reduction-washed, washed with water and dried. The dyed product was brilliant bluish red in shade and superior in fastnesses to light and sublimation.

What is claimed is:

1. A compound of the formula,

wherein Z is oxygen or sulfur atom, X is hydrogen or a halogen atom, R is hydrogen atom, C -C alkyl, C -C alkyl substituted by a member selected from the group consisting of chlorine, cyano, methoxycarbonyl, ethoxycarbonyl, benzyloxycarbonyl, phenethyloxycanbonyl, phenethyl, benzyl and phthalimidomethyl, or alkoxy, phenylcarbonyl, alkylcarbonyl, alkylmercapto, alkylsulfonyl, phenoxysulfonyl, carboalkoxy, alkylaminosulfonyl, phenylaminosulfonyl, phenyl, nitro or cyano group, or a halogen atom, and m and n are respectively an integer of 1 to 4.

2. The compound of Claim 1 wherein R is methyl.

3. A compound according to Claim 1, wherein -R is a C -C alkyl.

4. A compound according to Claim 1, wherein Z is oxygen atom.

5. A compound according to Claim 2, wherein R is hydrogen or a halogen atom or a lower alkyl group.

6. A compound according to Claim 1, wherein Z is sulfur atom.

7. A compound according to Claim 6, wherein R is hydrogen or a halogen atom, or a lower alkyl group.

8. A compound of the formula,

9. A compound of the formula,

20 10. A compound of the formula,

0 IFH! 11. A compound of the formula,

3 NH, O-Q-Br Q Y .H

12. A compound of the formula,

13. A compound of the formula,

(M) NH:

14. A compound of the formula,

References Cited UNITED STATES PATENTS ROBERT GERSTL, Primary Examiner US. Cl. X.R. 

